B'midbar (Num) 13:26-33

and went to Moshe, Aharon and the entire community of the people of Isra’el at Kadesh in the Pa’ran Desert, where they brought back word to them and to the entire community and showed them the fruit of the land. What they told him was this: “We entered the land where you sent us, and indeed it does flow with milk and honey — here is its fruit! However the people living in the land are fierce, and the cities are fortified and very large. Moreover, we saw the ‘Anakim there. ‘Amalek lives in the area of the Negev; the Hitti, the Y’vusi and the Emori live in the hills; and the Kena‘ani live by the sea and alongside the Yarden.” Kalev silenced the people around Moshe and said, “We ought to go up immediately and take possession of it; there is no question that we can conquer it.” But the men who had gone with him said, “We can’t attack those people, because they are stronger than we are”; and they spread a negative report about the land they had reconnoitered for the people of Isra’el by saying, “The land we passed through in order to spy it out is a land that devours its inhabitants. All the people we saw there were giant! We saw the N’filim, the descendants of ‘Anak, who was from the N’filim; to ourselves we looked like grasshoppers by comparison, and we looked that way to them too!”